FIELD: railway automation.
SUBSTANCE: invention relates to the field of railway automation for regulating the movement of trains. The technical solution is based on the use of devices of the EC post and devices of linear points of LT, located in the track boxes in the middle of the rail lines. The primary winding of the travel transformer (TT) is connected to a two-wire cable line (CL) laid along the track, the secondary winding is connected to the rails. In the track box, in addition to (TT), a counter (C) of DC pulses is installed, which controls the electronic key EK, which connects (CL) with the rails with the participation of (TT). Between the DC pulses, pulses of the tone frequency are transmitted from the EC post in (CL) to control the states (SC). With a free and serviceable (SC) current in (CL) corresponds to the threshold current, otherwise it differs significantly from it. The value of the current is determined by the track receiver, which transmits information to the station computer, it determines the state of the rail lines. All track circuits are alternately controlled with the participation of a computer and a CT.
EFFECT: increased reliability of control of TC states.
2 cl, 4 dwg
